<template>
  <view style="background-color: #f5f5f5;">
    <view class="search-box">
      <!-- 吸顶效果 -->
      <my-search @click="gotoSearch"></my-search>
    </view>
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,index) in swiperList" :key="item.goods_id">
        <navigator class="swiper-item" :url="`/subpkg/goods_detail/goods_detail?goods_id=${item.goods_id}`">
          <image :src="item.image_src" mode=""></image>
        </navigator>
      </swiper-item>
    </swiper>
    
    <!-- 分类导航区域 -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item, index) in navList" :key="index" @click="navClickHandler(item)">
        <image :src="item.image_src" class="nav-img"></image>
      </view>
    </view>
    
    <!-- 楼层区域 -->
    <view class="floor-list">
      <!-- 楼层 item 项 -->
      <view class="floor-item" v-for="(item, index) in floorList" :key="index">
        <!-- 楼层标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片区域 -->
        <view class="floor-img-box">
          <!-- 左侧大图片盒子 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
          </navigator>
          <!-- 右侧小图片盒子 -->
          <view class="right-img-box">
            <navigator class="right-img-item" v-for="(item2, index2) in item.product_list" :key="index2" :url="item2.url">
              <image v-if="index2 !== 0" :src="item2.image_src" :style="{width: item2.image_width + 'rpx'}" mode="widthFix"></image>
            </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js';
  export default {
    mixins: [badgeMix],
    data() {
      return {
        swiperList: [] ,// 轮播图数据列表
        navList: [], // 分类导航数据列表
        floorList: [], // 楼层数据列表
      };
    },
    onLoad() {
      this.getSwiperList();
      this.getNavList();
      this.getFloorList();
    },
    methods:{
      gotoSearch(){
        uni.navigateTo({
          url: '/subpkg/search/search'
        });
      },
      async getSwiperList(){
        const {data: res} = await uni.$http.get(`/api/public/v1/home/swiperdata`);
        if(res.meta.status !== 200){
          return uni.$showMsg();
        }
        this.swiperList = res.message;
      },
      async getNavList(){
        const {data: res} = await uni.$http.get(`/api/public/v1/home/catitems`);
        if(res.meta.status !== 200){
          return uni.$showMsg();
        }
        this.navList = res.message;
      },
      async getFloorList(){ // 获取首页楼层数据
        const {data: res} = await uni.$http.get(`/api/public/v1/home/floordata`);
        if(res.meta.status !== 200){
          return uni.$showMsg();
        }
        // 对数据进行处理
        // 通过双层 forEach 循环，处理 URL 地址
          res.message.forEach(floor => {
            floor.product_list.forEach(prod => {
              prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
            })
          });
        this.floorList = res.message;
      },
      // nav-item 项被点击时候的事件处理函数
      navClickHandler(item) {
        // 判断点击的是哪个 nav
        if (item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          })
        }
      },
    }
  }
</script>

<style lang="scss">
.search-box{
  position: sticky; // 吸顶
  top: 0;
  z-index: 999; // 防止被覆盖
}
swiper{
  height: 330rpx;
  .swiper-item, .swiper-item image{
    width: 100%;
    height: 100%;
  }
}
.nav-list{
  display: flex;
  justify-content: space-around;
  margin: 30rpx 0;
  .nav-img{
    width: 128rpx;
    height: 140rpx;
  }
}
.floor-title {
  height: 60rpx;
  width: 100%;
}
.floor-img-box{
  display: flex;
  padding-left: 10rpx;
  .right-img-box{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }
}

</style>
